It can be a question when your uncle's/daughter's/etc phone is full of photos and they asks for advice on how to make more space. It can be a question of if th

It can be a question when your uncle's/daughter's/etc phone is full of photos and they asks for advice on how to make more space. It can be a question of if the photo fits as an email attachment etc. 'Zillions' of seconds of aggregate latency waiting time is spent each day on waiting for web sites to load. Back-of-the-envelope calculations can suggest that the value of reducing waiting time can be in hundreds of billions over the whole time of the deployment. Bandwidth cost to users and energy use may also be significant factors.